CN108675768A - A kind of roller kilns process for calcining of foamed ceramic light weight board - Google Patents
A kind of roller kilns process for calcining of foamed ceramic light weight board Download PDFInfo
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Abstract
The invention discloses a kind of roller kilns process for calcining of foamed ceramic light weight board, including:(1) it is warming up to T1, T1It it is 800 900 DEG C, and in T1Keep the temperature 0 30min, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 10 20 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 18 DEG C/min；(2) it is warming up to T2, T2It is 1,150 1220 DEG C, and 0 60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating rate be 18 DEG C/min；(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 39 DEG C/min, and the rate of temperature fall for being cooled to 50 DEG C by 600 DEG C is 14 DEG C/min.Using the present invention, low temperature fast firing is realized, the foamed ceramic light weight board being fired into is on same section, and stomata indifference, bubble uniformity are high from top to bottom.
Description
Technical field
The present invention relates to ceramic wafer technical field more particularly to a kind of roller kiln burning Cheng Fang of foamed ceramic light weight board
Method.
Background technology
Basis material used in foamed ceramic comes from ceramics factory's waste material and industrial waste the like waste, and (ceramic polishing is useless
Slag or cinder or stone material waste residue etc.), if these wastes are not handled, arbitrarily accumulation or landfill will pollute the environment,
Waste resource.
The foamed ceramic product is light-weight with its, intensity is high, fire prevention, antidetonation, heat-insulated, sound insulation, strong modularity, is easy to remove
Fortune, it is widely applicable the advantages that gradually start to use in China.Again because its raw material is cinder, ceramic polishing waste residue, slag
Etc. solid waste, in terms of resource makes full use of with environmental protection have positive social effect.
The formula system of existing foamed ceramic generally comprises ceramic polishing waste residue and foaming agent, ceramic polishing waste residue dosage compared with
It is few, it is mostly 50% or so.For foaming agent addition 1.2% or so, addition is more, and cost is higher.Because of existing foamed bricks
Whole brick is thicker, the more difficult oxidation of formula system, and the formula system of foamed ceramic determines that it must be burnt into using tunnel oven,
The firing period of tunnel oven is about 24-26 hours, and firing period is long, and temperature is higher.
Moreover, as shown in Figure 1, foamed ceramic plate made from the prior art, internal to form multilayer stomata.In the mistake of foaming
Cheng Zhong, since foamed time is longer, and it is affected by gravity, lower layer's stomata can be crushed so that the whole uniformity of product
It is bad.
Invention content
Technical problem to be solved by the present invention lies in provide a kind of roller kiln burning Cheng Fang of foamed ceramic light weight board
Method realizes low temperature fast firing, and the foamed ceramic light weight board being fired into is on same section, stomata indifference from top to bottom,
Bubble uniformity is high.
In order to solve the above technical problem, the present invention provides a kind of roller kiln burning Cheng Fang of foamed ceramic light weight board
Method, including:
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, the liter for being warming up to 400 DEG C by 0 DEG C
Warm rate is 10-20 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 1-8 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2's
Heating rate is 1-8 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall is 1-4 DEG C/min.
As the improvement of said program, roller kilns process for calcining includes:
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, the liter for being warming up to 400 DEG C by 0 DEG C
Warm rate is 13-17 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 4-6 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2's
Heating rate is 4-6 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 5-7 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall is 1-3 DEG C/min.
As the improvement of said program, roller kilns process for calcining includes：
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, the liter for being warming up to 400 DEG C by 0 DEG C
Warm rate is 15 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 5 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2's
Heating rate is 5 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 6 DEG C/min, the drop for being cooled to 50 DEG C by 600 DEG C
Warm rate is 2 DEG C/min.
As the improvement of said program, the foamed ceramic light weight board is mainly by the raw material system of following weight percentage
At:
Ceramic polishing waste residue 70-96%, clay 0-10%, feldspar 0-20%, foaming agent 0.01-0.6%, stabilizer 0.1-
4%；
The stabilizer is manganese dioxide.
As the improvement of said program, the foamed ceramic light weight board is mainly by the raw material system of following weight percentage
At:
Ceramic polishing waste residue 75-95%, clay 0.1-10%, feldspar 0.1-20%, foaming agent 0.1-0.4%, stabilizer
0.1-3%.
As the improvement of said program, the clay is one or more in black mud, kaolin, municipal sludge, ooze.
As the improvement of said program, the foaming agent is silicon carbide or grinding head for polishing reclaimed materials, and the grinding head for polishing returns
The main component of rewinding includes silicon carbide and resin.
As the improvement of said program, the roller kiln burning at including：
On roller kilns use saggar, saggar be integral type saggar or pin-connected panel saggar, using artificial or machine cloth, then
It is burnt under conditions of 1150-1220 DEG C.
As the improvement of said program, the pin-connected panel saggar includes holder, backing plate, coaming plate and high temperature paper, the backing plate
It is laid on holder, the coaming plate rides upon the surrounding of backing plate, and the high temperature paper is equipped on the backing plate and coaming plate.
As the improvement of said program, the holder is SiC holders；
The backing plate is mullite backing plate, silicon carbide backing plate or cordierite backing plate；
The coaming plate is mullite coaming plate, silicon carbide coaming plate or cordierite coaming plate；
The high temperature paper is aluminum silicate fiber paper.
Implement the present invention, has the advantages that：
The present invention devises the roller kilns process for calcining of a completely new foamed ceramic light weight board, realizes low temperature fast firing,
The oxidation reaction phases-time for greatly reducing formula, shortens firing period, improves yield, reduces the energy of unit product
Consumption.
The foamed ceramic light weight board includes ceramic polishing waste residue 70-96%, foaming agent 0.01-0.6%, stabilizer
0.1-4%, which increase the addition of ceramic polishing waste residue, the addition of ceramic polishing waste residue reaches as high as 96%, simultaneously will
The addition of foaming agent is reduced to 0.01-0.6%.On the basis of this, the manganese dioxide stabilizer of 0.1-4%, Ke Yiti is added
The uniformity of high bubble, even if in same section, stomata indifference from top to bottom so that the whole uniformity of product is good.
Foamed ceramic light weight board good quality produced by the present invention, compression strength >=5Mpa, bulk density：200-
1100Kg/m3, flexural strength：＞ 4Mpa, thermal coefficient：≤ 0.15W/m DEG C, combustion rating：A1 grades, water absorption rate：＜ 2%, puts
Penetrating property index：IRa≤ 1.0, Ir≤1.0。
Description of the drawings
Fig. 1 is the sectional view of the roller kilns process for calcining of prior art foamed ceramic light weight board；
Fig. 2 is the flow chart of the roller kilns process for calcining of foamed ceramic light weight board of the present invention；
Fig. 3 is the flow chart of the preparation method of foamed ceramic light weight board of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Fig. 2, the present invention provides a kind of roller kilns process for calcining of foamed ceramic light weight board, including:
S201, it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, it is warming up to 400 DEG C by 0 DEG C
Heating rate is 10-20 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 1-8 DEG C/min；
S202, it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2
Heating rate be 1-8 DEG C/min；
S203, slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 1-4 DEG C/min.
Preferably, roller kilns process for calcining includes:
S201, it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, it is warming up to 400 DEG C by 0 DEG C
Heating rate is 13-17 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 4-6 DEG C/min；
S202, it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2
Heating rate be 4-6 DEG C/min；
S203, slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 5-7 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 1-3 DEG C/min.
More preferably, roller kilns process for calcining includes:
S201, it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, it is warming up to 400 DEG C by 0 DEG C
Heating rate is 15 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 5 DEG C/min；
S202, it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2
Heating rate be 5 DEG C/min；
S203, slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 6 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall is 2 DEG C/min.
Compared with prior art, low temperature and fast firing may be implemented in firing process of the invention, by the oxidation reaction of formula
Phases-time substantially reduces, and firing period shortens, output increased, and the energy consumption of unit product reduces.The foamed ceramic light weight board
Roller kilns process for calcining yield is not only increased using roller kilns firing process, also a save the energy, energy consumption of unit product drop
Low 10-30%.
The foamed ceramic light weight board is mainly made of the raw material of following weight percentage:Ceramic polishing waste residue 70-
96%, clay 0-10%, feldspar 0-20%, foaming agent 0.01-0.6%, stabilizer 0.1-4%.Preferably, the foamed ceramic
Light weight board is mainly made of the raw material of following weight percentage:Ceramic polishing waste residue 75-95%, clay 0.1-10%, feldspar
0.1-20%, foaming agent 0.1-0.4%, stabilizer 0.1-3%.Wherein, the stabilizer is manganese dioxide, and the foaming agent is
Silicon carbide or grinding head for polishing reclaimed materials.
Invention increases the additions of ceramic polishing waste residue, while reducing the addition of foaming agent.On the basis of this, add
The manganese dioxide stabilizer for entering 0.1-3%, can improve the uniformity of bubble, even if in same section, stomata from top to bottom
Indifference so that the whole uniformity of product is good.The stomata of the roller kilns process for calcining entirety section of foamed ceramic light weight board
It is circular hole, and pore size from top to bottom is almost the same, the uniform pore diameter of firing is good.
Manganese dioxide is amphoteric oxide, it is a kind of black powder solid highly stable under room temperature.Meet reducing agent
When, oxidisability is shown as, when meeting strong oxidizer, shows as reproducibility.The prior art usually using manganese dioxide as oxidant or
Catalyst uses.The present invention is used manganese dioxide as bubble stabilizer, manganese dioxide can by with after the reacting of formula,
So that the wall of stomata is toughened up, while keeping the uniformity of formula more preferable, even if indifference if same section hole from top to bottom
It is different, it avoids stomata from being crushed, improves the uniformity of bubble, the whole uniformity of product is good.
The foaming agent is silicon carbide or grinding head for polishing reclaimed materials, and the main component of the grinding head for polishing reclaimed materials includes carbon
SiClx and resin.Silicon carbide is a kind of expanded material, and the presence of the material makes it in sintering procedure unlike conventional ceramic
It shrinks, is expansion instead, to make high-strength light ceramic wafer for building more hold than traditional ceramics plate in size and thickness
It is easy to do to big and thick.Grinding head for polishing reclaimed materials is added as substrate raw material, is because grinding head for polishing main component itself is exactly carbon
SiClx and resin, and silicon carbide is exactly the foaming agent added in inventive formulation, so the present invention can be by the addition of foaming agent
Amount is reduced to 0.1-0.4%, is reduced the dosage of foaming agent, is reduced cost.
Meanwhile the ceramic polishing waste residue of 75-95% is introduced in formula, environment-protective circulating utilization is not only improved, it is also possible that
It is internal after the roller kilns process for calcining sintering of foamed ceramic light weight board that there is firm similar cellular pore space structure, have
It is environmentally protective, light, facilitate construction, mitigate building load the advantages that.The addition of ceramic polishing waste residue of the present invention is far longer than
Existing foamed ceramic plate reduces cost, reinforces the recycling to solid waste.
As the present invention more preferably embodiment, clay and feldspar is added in raw material, i.e., the described ceramic light weight board is main
It is made of the raw material of following weight percentage:
Ceramic polishing waste residue 75-95%, clay 0.1-10%, feldspar 0.1-20%, foaming agent 0.1-0.4%, stabilizer
0.1-3%.Clay is one or more in black mud, kaolin, municipal sludge, ooze.
Clay and feldspar is added in raw material of the present invention, can adjust silicon, aluminium, potassium, the sodium ingredient ratio in Base Formula, make foaming
Brick wall is harder, intensity higher, to further strengthen the recycling to solid waste.
As a result of completely new formula system, the present invention breaches traditional foamed ceramic plate and can only be burnt by tunnel oven
Limitation, common firing can be both realized by tunnel oven, can also be realized and be rapidly fired to by roller kilns.
Specifically, the roller kiln burning at including：
On roller kilns use saggar, saggar be integral type saggar or pin-connected panel saggar, using artificial or machine cloth, then
It is burnt under conditions of 1150-1220 DEG C.The pin-connected panel saggar includes holder, backing plate, coaming plate and high temperature paper, the pad
Plate is laid on holder, and the coaming plate rides upon the surrounding of backing plate, and the high temperature paper is equipped on the backing plate and coaming plate.It is preferred that
, the holder is SiC holders；The backing plate is mullite backing plate, silicon carbide backing plate or cordierite backing plate；The coaming plate is not
Come stone coaming plate, silicon carbide coaming plate or cordierite coaming plate；The high temperature paper is aluminum silicate fiber paper.
The present invention can use roller kilns realization to be rapidly fired to (period is 12 hours or so), and the prior art can only all make
With tunnel oven firing (period is 24-26 hours).
Correspondingly, as shown in figure 3, the present invention provides a kind of preparation method of foamed ceramic light weight board, including：
S101, by raw material batch mixing, and ball powder-grinding according to the ratio；
The ball powder-grinding can be wet powder-making, can also be dry method powder.The wet powder-making includes：By raw material plus
The water of 30-40% is put into ball mill and carries out ball-milling treatment, is milled to 250 mesh and tails over less than 1%, using spray tower system
Powder obtains the powder that moisture content is 5-10%.
S102, powder is subjected to cloth, obtains green body；
S103, green body is burnt by roller kilns or tunnel oven, obtains semi-finished product；
S104, half product is ground by cutting, obtains finished product.
After firing, it is also necessary to handled using grinding green body upper and lower surface, edge uses cutting process.
Foamed ceramic light weight board of the present invention is done into technology detection, it is as a result as follows：
Therefore, the present invention is on the basis of solving the internal porosity of foamed ceramic light weight board, it is ensured that it is with good
Good compression strength, and heat insulation effect is good, good flame resistance, radioactive indicator is low.
With specific embodiment, the present invention is further explained below
Embodiment 1
(1) it is formulated：Ceramic polishing waste residue 95.5%, foaming agent 0.5%, manganese dioxide stabilizer 4%.
(2) preparation method：
By above-mentioned raw materials batch mixing according to the ratio, it is transported to ball mill and carries out ball-milling treatment, and be sized to 250 mesh and tail over
Less than 1%, spray tower is then reached by pulp storage tank, transfer pond and carries out mist projection granulating, obtained powder by truck cloth, into
Enter roller kiln burning at process for calcining is as follows：
(a) 800 DEG C are warming up to, and keeps the temperature 20min at 800 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 10
DEG C/min, the heating rate for being warming up to 800 DEG C by 400 DEG C is 3 DEG C/min；
(b) 1150 DEG C are warming up to, and 40min is kept the temperature in the highest temperature, wherein by the 800 DEG C of heating for being warming up to 1150 DEG C speed
Rate is 3 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1150 DEG C are 3 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 1 DEG C/min.
Finally by cutting grinding, finished product is obtained.
Embodiment 2
(1) it is formulated：Ceramic polishing waste residue 90%, clay 1%, feldspar 8.8%, foaming agent 0.1%, manganese dioxide stabilizer
0.1%.
(2) preparation method：
By above-mentioned raw materials batch mixing according to the ratio, it is transported to ball mill and carries out ball-milling treatment, and be sized to 250 mesh and tail over
Less than 1%, spray tower is then reached by pulp storage tank, transfer pond and carries out mist projection granulating, obtained powder by truck cloth, into
Enter roller kiln burning at process for calcining is as follows：
(a) 820 DEG C are warming up to, and keeps the temperature 15min at 820 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 15
DEG C/min, the heating rate for being warming up to 820 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1170 are warming up to, and 30min is kept the temperature in the highest temperature, wherein the heating rate for being warming up to 1170 DEG C by 820 DEG C
For 4 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1170 DEG C are 4 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Finally by cutting grinding, finished product is obtained.
Embodiment 3
(1) it is formulated：Ceramic polishing waste residue 92%, clay 5%, feldspar 2%, foaming agent 0.2%, manganese dioxide stabilizer
0.8%.
(2) preparation method：
By above-mentioned raw materials batch mixing according to the ratio, it is transported to ball mill and carries out ball-milling treatment, and be sized to 250 mesh and tail over
Less than 1%, spray tower is then reached by pulp storage tank, transfer pond and carries out mist projection granulating, obtained powder by truck cloth, into
Enter roller kiln burning at process for calcining is as follows：
(a) 830 DEG C are warming up to, and keeps the temperature 25min at 830 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 15
DEG C/min, the heating rate for being warming up to 830 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1180 DEG C are warming up to, and 0-60min is kept the temperature in the highest temperature, wherein the heating for being warming up to 1180 DEG C by 830 DEG C
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1180 DEG C are 5 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Finally by cutting grinding, finished product is obtained.
Embodiment 4
(1) it is formulated：Ceramic polishing waste residue 88%, clay 2%, feldspar 8%, foaming agent 0.1%, manganese dioxide stabilizer
1.9%.
(2) preparation method：
By above-mentioned raw materials batch mixing according to the ratio, it is transported to ball mill and carries out ball-milling treatment, and be sized to 250 mesh and tail over
Less than 1%, spray tower is then reached by pulp storage tank, transfer pond and carries out mist projection granulating, obtained powder by truck cloth, into
Enter roller kiln burning at process for calcining is as follows：
(a) 850 DEG C are warming up to, and keeps the temperature 30min at 850 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 16
DEG C/min, the heating rate for being warming up to 850 DEG C by 400 DEG C is 5 DEG C/min；
(b) 1200 DEG C are warming up to, and 50min is kept the temperature in the highest temperature, wherein by the 850 DEG C of heating for being warming up to 1200 DEG C speed
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1200 DEG C are 6 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Finally by cutting grinding, finished product is obtained.
Embodiment 5
(1) it is formulated：Ceramic polishing waste residue 80%, clay 10%, feldspar 7.7%, foaming agent 0.3%, manganese dioxide are stablized
Agent 2%.
(2) preparation method：
By above-mentioned raw materials batch mixing according to the ratio, it is transported to ball mill and carries out ball-milling treatment, and be sized to 250 mesh and tail over
Less than 1%, spray tower is then reached by pulp storage tank, transfer pond and carries out mist projection granulating, obtained powder by truck cloth, into
Enter roller kiln burning at process for calcining is as follows：
(a) 860 DEG C are warming up to, and keeps the temperature 10min at 860 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 17
DEG C/min, the heating rate for being warming up to 860 DEG C by 400 DEG C is 6 DEG C/min；
(b) 1210 DEG C are warming up to, and 30min is kept the temperature in the highest temperature, wherein by the 860 DEG C of heating for being warming up to 1210 DEG C speed
Rate is 5 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1210 DEG C are 6 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 2 DEG C/min.
Finally by cutting grinding, finished product is obtained.
Embodiment 6
(1) it is formulated：Ceramic polishing waste residue 75%, clay 1.6%, feldspar 20%, foaming agent 0.4%, stabilizer 3%.
(2) preparation method：
By above-mentioned raw materials batch mixing according to the ratio, it is transported to ball mill and carries out ball-milling treatment, and be sized to 250 mesh and tail over
Less than 1%, spray tower is then reached by pulp storage tank, transfer pond and carries out mist projection granulating, obtained powder by truck cloth, into
Enter tunnel oven firing, process for calcining is as follows：
(a) 900 DEG C are warming up to, and keeps the temperature 30min at 900 DEG C, wherein the heating rate for being warming up to 400 DEG C by 0 DEG C is 20
DEG C/min, the heating rate for being warming up to 900 DEG C by 400 DEG C is 8 DEG C/min；
(b) 1220 DEG C are warming up to, and 60min is kept the temperature in the highest temperature, wherein by the 900 DEG C of heating for being warming up to 1220 DEG C speed
Rate is 8 DEG C/min；
(c) slow cooling, the rate of temperature fall for being cooled to 600 DEG C by 1220 DEG C are 9 DEG C/min, and 50 DEG C are cooled to by 600 DEG C
Rate of temperature fall be 4 DEG C/min.
Finally by cutting grinding, finished product is obtained.
Foamed ceramic light weight board obtained by embodiment 1-6 is done into technology detection, it is as a result as follows：
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art should
Understand, technical scheme of the present invention can be modified or replaced equivalently, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of roller kilns process for calcining of foamed ceramic light weight board, which is characterized in that including:
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, by the 0 DEG C of heating for being warming up to 400 DEG C speed
Rate is 10-20 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 1-8 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating speed
Rate is 1-8 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 3-9 DEG C/min, by the 600 DEG C of cooling for being cooled to 50 DEG C speed
Rate is 1-4 DEG C/min.
2. the roller kilns process for calcining of foamed ceramic light weight board as described in claim 1, which is characterized in that including:
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, by the 0 DEG C of heating for being warming up to 400 DEG C speed
Rate is 13-17 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 4-6 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating speed
Rate is 4-6 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 5-7 DEG C/min, by the 600 DEG C of cooling for being cooled to 50 DEG C speed
Rate is 1-3 DEG C/min.
3. the roller kilns process for calcining of foamed ceramic light weight board as claimed in claim 2, which is characterized in that including：
(1) it is warming up to T1, T1It it is 800-900 DEG C, and in T10-30min is kept the temperature, wherein, by the 0 DEG C of heating for being warming up to 400 DEG C speed
Rate is 15 DEG C/min, and T is warming up to by 400 DEG C1Heating rate be 5 DEG C/min；
(2) it is warming up to T2, T2It is 1150-1220 DEG C, and 0-60min is kept the temperature in the highest temperature, wherein by T1It is warming up to T2Heating speed
Rate is 5 DEG C/min；
(3) slow cooling, by T2The rate of temperature fall for being cooled to 600 DEG C is 6 DEG C/min, the rate of temperature fall for being cooled to 50 DEG C by 600 DEG C
For 2 DEG C/min.
4. the roller kilns process for calcining of foamed ceramic light weight board as described in claim 1, which is characterized in that the foaming pottery
Porcelain light weight board is mainly made of the raw material of following weight percentage:
Ceramic polishing waste residue 70-96%, clay 0-10%, feldspar 0-20%, foaming agent 0.01-0.6%, stabilizer 0.1-4%；
The stabilizer is manganese dioxide.
5. the roller kilns process for calcining of foamed ceramic light weight board as claimed in claim 4, which is characterized in that the foaming pottery
Porcelain light weight board is mainly made of the raw material of following weight percentage:
Ceramic polishing waste residue 75-95%, clay 0.1-10%, feldspar 0.1-20%, foaming agent 0.1-0.4%, stabilizer 0.1-
3%.
6. the roller kilns process for calcining of foamed ceramic light weight board as described in claim 4 or 5, which is characterized in that described viscous
Soil is one or more in black mud, kaolin, municipal sludge, ooze.
7. the roller kilns process for calcining of foamed ceramic light weight board as described in claim 4 or 5, which is characterized in that the hair
Infusion is silicon carbide or grinding head for polishing reclaimed materials, and the main component of the grinding head for polishing reclaimed materials includes silicon carbide and resin.
8. the roller kilns process for calcining of foamed ceramic light weight board as described in claim 1, which is characterized in that the roller kilns
Firing includes：
It is then integral type saggar or pin-connected panel saggar are existed using artificial or machine cloth that saggar, saggar are used on roller kilns
It is burnt under conditions of 1150-1220 DEG C.
9. the roller kilns process for calcining of foamed ceramic light weight board as claimed in claim 8, which is characterized in that the pin-connected panel
Saggar includes holder, backing plate, coaming plate and high temperature paper, and the backing plate is laid on holder, and the coaming plate rides upon the surrounding of backing plate,
The high temperature paper is equipped on the backing plate and coaming plate.
10. the roller kilns process for calcining of foamed ceramic light weight board as claimed in claim 9, which is characterized in that the holder
For SiC holders；
The backing plate is mullite backing plate, silicon carbide backing plate or cordierite backing plate；
The coaming plate is mullite coaming plate, silicon carbide coaming plate or cordierite coaming plate；
The high temperature paper is aluminum silicate fiber paper.
Priority Applications (2)
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|---|---|---|---|
| CN201810687838.0A CN108675768A (en) | 2018-06-28 | 2018-06-28 | A kind of roller kilns process for calcining of foamed ceramic light weight board |
| PCT/CN2018/100133 WO2020000590A1 (en) | 2018-06-28 | 2018-08-11 | Rolling kiln firing method for foamed ceramic lightweight plate material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687838.0A CN108675768A (en) | 2018-06-28 | 2018-06-28 | A kind of roller kilns process for calcining of foamed ceramic light weight board |
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| WO (1) | WO2020000590A1 (en) |
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| CN109133975A (en) * | 2018-11-05 | 2019-01-04 | 广东金意陶陶瓷集团有限公司 | A kind of high-strength light foamed ceramic plate and preparation method thereof |
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